Spring Entropy 3/23/23

Work requires energy, so in essence, they are using energy to undo the entropy caused by the water, energy in the form of petrol fuel and food which the construction workers eat to give themselves energy.  The byproducts of both of these is carbon dioxide and other gases which, in turn, increase the entropy of the surroundings as they work. 


Test Points 1/30/23

Back then, though, systems such as this came with sophisticated owner’s manuals complete with electronic schematics and detailed debugging information.  The circuit boards were built with “test points”, little metal protrusions designed to be able to put the leads of a multimeter to them and measure either voltage or resistance at that point.  They were somehow labeled, and the manual listed sets of these test points and what the measurement should read.  If it was off, you could tell where the problem was